<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
  <style type="text/css">

.parentWithPerspective {
  -moz-perspective: 100px;
  -moz-perspective-origin: 150px 150px;
  -webkit-perspective: 100px;
  -webkit-perspective-origin: 150px 150px;
  /* Changing width/height to 500px should not change the rendering. */
  height:500px;
}

.parentWithPerspective > div {
  position:absolute;
  top:100px;
  left:100px;
  width:100px;
  height:100px;
}

.notTransformed {
  outline: 1px solid black;
}

.transformed {
  background:blue;
  -moz-transform-origin: 0% 0%;
  -moz-transform: rotateY(45deg);
  -webkit-transform-origin: 0% 0%;
  -webkit-transform: rotateY(45deg);
}

  </style>
  <body>
    <div class="parentWithPerspective">
      <div class="notTransformed"></div>
      <div class="transformed"></div>
    </div>
  </body>
</html>
